Non-Contact and Non-Destructive Measurement of Ge and B Content in Si1-xGex/Si Using Very High Resolution Multiwavelength Raman Spectroscopy

2019 ◽  
Vol 33 (6) ◽  
pp. 877-885 ◽  
Author(s):  
Woo Sik Yoo ◽  
Takeshi Ueda ◽  
Toshikazu Ishigaki ◽  
Kitaek Kang
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Very High

Evaluation of Very High Resolution Multi-Wavelength Raman Spectroscopy for In-Line Characterization of Patterned Epitaxial Si1-xGex Layers on Si(100) Wafers

2019 ◽  
Vol 35 (2) ◽  
pp. 205-212 ◽  
Author(s):  
Victor Vartanian ◽  
Takeshi Ueda ◽  
Toshikazu Ishigaki ◽  
Kitaek Kang ◽  
Woo Sik Yoo
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Multi Wavelength ◽  
Very High

Stress Characterization of Tungsten-Filled Through Silicon via Arrays Using Very High Resolution Multi-Wavelength Raman Spectroscopy

2019 ◽  
Vol 35 (2) ◽  
pp. 105-115 ◽  
Author(s):  
Jeff Gambino ◽  
Daniel Vanslette ◽  
Bucknell Webb ◽  
Cameron Luce ◽  
Takeshi Ueda ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Through Silicon Via ◽  
Multi Wavelength ◽  
Very High

Observation of oxygen inhibited layer of organic dental resin by confocal Raman-microscopy

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Jean Baptiste Robin ◽  
Jean Cédric Durand ◽  
Loic Derely ◽  
Bruno Jacquot ◽  
Frédéric Cuisinier ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Triethylene Glycol ◽  
Composite Resins ◽  
Confocal Raman Spectroscopy ◽  
Dental Resin ◽  
Dental Resins ◽  
Confocal Raman ◽  
Inorganic Fillers ◽  
Destructive Measurement ◽  
Non Destructive

AbstractThis study investigated degrees of conversion of oxygen inhibited layer (OIL) of organic dental resins for restoration using Confocal-Raman spectroscopy. The aim was to determine which laser is adapted to determine the degrees of conversion of OIL and to measure variations of thickness and degrees of conversion in OIL with respect to monomers proportions. Bis-GMA (bis-phenol A glycidyl dimethacrylate) and TEGDMA (triethylene glycol dimethacrylate) based resins with various ratio of an equimolecular mixture of camphorquinone/EDMAB (ethyl (4-dimethyl amino) benzoate) were studied with different lasers by confocal- Raman spectroscopy. Results show that this technique is adapted for the non destructive measurement of OIL. The Thickness of OIL is not correlated with the proportions of Bis-GMA and TEGDMA in the resin and was close to 3-4μm. Thickness of OIL is very thin without inorganic fillers (3 or 4 μm). Inorganic fillers might be responsible of greater OIL in composite resins.

scholarly journals Parallel high-resolution confocal Raman SEM analysis of inorganic and organic bone matrix constituents

2005 ◽  
Vol 2 (2) ◽  
pp. 39-45 ◽  
Author(s):  
A.A van Apeldoorn ◽  
Y Aksenov ◽  
M Stigter ◽  
I Hofland ◽  
J.D de Bruijn ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Bone Matrix ◽  
Collagen Fibre ◽  
Chemical Information ◽  
Type I ◽  
Confocal Raman ◽  
Non Destructive ◽  
Inorganic And Organic

In many multi-disciplinary fields of science, such as tissue engineering, where material and biological sciences are combined, there is a need for a tool that combines ultrastructural and chemical data analysis in a non-destructive manner at high resolution. We show that a combination of confocal Raman spectroscopy (CRS) and scanning electron microscopy (SEM) can be used for such analysis. Studies of atomic composition can be done by X-ray microanalysis in SEM, but this is only possible for atomic numbers greater than five and does not reveal molecular identity. Raman spectroscopy, however, can provide information on molecular composition and identity by detection of wavelength shifts caused by molecular vibrations. In this study, CRS–SEM revealed that early in vitro -formed bone extracellular matrix (ECM) produced by rat osteoprogenitor cells resembles mature bone chemically. We gained insight into the structure and chemical composition of the ECM, which was composed of mainly mineralized collagen type I fibres and areas of dense carbonated calcium phosphate related to the collagen fibre density, as revealed by Raman imaging of SEM samples. We found that CRS–SEM allows the study of specimens in a non-destructive manner and provides high-resolution structural and chemical information about inorganic and organic constituents by parallel measurements on the same sample.

Sign in / Sign up

Export Citation Format

Share Document